Question

Which statement explains the function of the hypothalamus in male sexual maturation?

The hypothalamus releases testosterone to increase height.

The hypothalamus releases follicle-stimulating hormone (FSH) to start spermatogenesis.

The hypothalamus releases luteinizing hormone (LH) to stimulate the Leydig cells.

The hypothalamus releases gonadotropin-releasing hormone (GnRH), leading to enlarged testes.

Answer 1

The hypothalamus releases GnRH, which then causes the release of FSH and LH from the pituitary gland. FSH and LH stimulate the Sertoli and Leydig cells, respectively, in the testes to promote spermatogenesis and testosterone production, which are vital to male sexual development.

Step-by-step explanation:

The hypothalamus plays a crucial role in male sexual maturation by releasing gonadotropin-releasing hormone (GnRH). This hormone stimulates the anterior pituitary gland to release two other hormones: follicle-stimulating hormone (FSH) and luteinizing hormone (LH). FSH primarily stimulates the Sertoli cells within the seminiferous tubules of the testes to promote spermatogenesis. Meanwhile, LH binds to receptors on Leydig cells in the testes and upregulates the production of testosterone, which is essential for the development of male secondary sexual characteristics and reproductive function.